29 Bertie Road, London, NW10 2LJ

1. 26 Apr 2021

   Received by Brent

2. 21 Jun 2021

   Decision issued: Certificate of Lawfulness - Granted

3. 20 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 29 Bertie Road, London, NW10 2LJ

  21/0143 Submitted 15 Jan 2021 0m away

  Prior approval for a single storey rear extension to dwellinghouse, in metres: Extending beyond the rear wall of the original house - 6m Maximum height - 3m Eaves height - 3m

  Granted Prior approval Extension 4 docs
  Small domestic

• 29 Bertie Road, London, NW10 2LJ

  21/0146 Submitted 15 Jan 2021 0m away

  Certificate of lawfulness for proposed loft conversion with rear dormer and extension over existing outrigger, roof alterations and 3 rear rooflights to dwellinghouse.

  Granted Lawful development Extension Loft or dormer +1 9 docs
  Domestic

• 36A Bertie Road, London, NW10 2LH

  26/0855 Submitted 1 Apr 2026 34m away

  79% historically approved · decision due ~15 Jul

  Proposed single storey side to rear extension to the ground floor flat.

  Decided Extension
  Small domestic

• 34 Bertie Road, London, NW10 2LH

  20/3489 Submitted 28 Oct 2020 34m away

  Certificate of lawfulness for proposed loft conversion with rear dormer over existing roof and existing outrigger and installation of 2 x front facing rooflights to dwellinghouse

  Granted Lawful development Extension Loft or dormer 12 docs
  Domestic

• 4 Bertie Road, London, NW10 2LH

  22/3718 Submitted 31 Oct 2022 34m away

  Certificate of lawfulness for proposed conversion of dwellinghouse to HMO (C4)

  Refused Lawful development 6 docs
  Domestic

• 16A & 16B Bertie Road, London, NW10 2LH

  25/2437 Submitted 22 Aug 2025 34m away

  Proposed replacement of windows with double glazed UPVC windows to front, side and rear elevations flats

  Granted Full applications New dwelling Windows or glazing 9 docs

• 26/0783 Granted

  3 Hamilton Road, London, NW10 1NU

  Certificate of lawfulness for existing single-storey rear extension to dwellinghouse

  26 Mar 2026 Lawful development
• 26/1946 Awaiting decision

  120 Gladstone Park Gardens, London, NW2 6RL

  Certificate of lawfulness for proposed rear dormer extension with Juliet balcony, hip to gable roof extension, installation of 1x window to side elevation and 2x front rooflights to dwellinghouse.

  30 Jul 2026 Lawful development
• 26/1208 Granted

  50 Ballogie Avenue, London, NW10 1TA

  Certificate of lawfulness for proposed rear dormer extension, hip to gable roof extension, alteration to fenestration and installation of rooflights to the dwellinghouse

  13 May 2026 Lawful development
• 26/1015 Refused

  5 Midholm, Wembley, HA9 9LJ

  Certificate of lawfulness for proposed installation of solar panels to the side and rear roofslope of the dwellinghouse.

  23 Apr 2026 Lawful development
• 26/1176 Refused

  47 Barn Rise, Wembley, HA9 9NH

  Certificate of lawfulness for proposed single storey outbuilding in rear garden of the dwellinghouse.

  11 May 2026 Lawful development